Correct the mistakes, if any, in sentences 1-6. Answers in the next chapter.
1. The informations in chart 1 were collected in August 2015.
2. This study will try to determine if or not the initial hypotheses were valid.
3. At this point it is hard to access the extent to which these findings will have a sizeable impact on language teaching.
4. Although there seem to be evidence that this is the case, the underlying mechanisms remain unclear.
5. This paper addresses the issue of urban violence and exploits ways in which we can make our cities safer.
6. This study was undertaken as an attempt to assess the effects of meditation on blood pressure.